C1111133313331323223313331333133313113313231333132212111113331333131321   >>    C111113331333132322331333133313331311331323133313221211111333133313132   <<    C1111133313331323223313331333133313113313231333132212111113331333131323   >>      C1111133313331323223313331333133313113313231333132212111113331333131322   >>